#!/bin/bash
#
# Copyright(c) 2012-2021 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause
#

. $(dirname $3)/conf_framework

# submit_bio() can be defined in "bio.h" or in "fs.h"
# If it is defind in fs.h, three possibilities are available:
#   * it takes one argument and retuns non-void
#   * it takes two arguments and returns non-void
#   * it takse two arguments and is void-type
check() {
	cur_name=$(basename $2)
	config_file_path=$1
	if compile_module $cur_name "submit_bio(NULL)" "linux/bio.h"
	then
        echo $cur_name "1" >> $config_file_path
	elif compile_module $cur_name "submit_bio(NULL)" "linux/fs.h"
	then
        echo $cur_name "2" >> $config_file_path
	elif compile_module $cur_name "void *t=submit_bio(0, NULL)" "linux/fs.h"
	then
        echo $cur_name "4" >> $config_file_path
	elif compile_module $cur_name "submit_bio(0, NULL)" "linux/fs.h"
	then
        echo $cur_name "4" >> $config_file_path
    else
        echo $cur_name "X" >> $config_file_path
    fi
}

apply() {
    case "$1" in
    "1")
		add_function "
	static inline blk_qc_t cas_submit_bio(int rw, struct bio *bio)
	{
		CAS_BIO_OP_FLAGS(bio) |= rw;
		return submit_bio(bio);
	}" ;;
    "2")
		add_function "
	static inline blk_qc_t cas_submit_bio(int rw, struct bio *bio)
	{
		CAS_BIO_OP_FLAGS(bio) |= rw;
		return submit_bio(bio);
	}" ;;
    "3")
		add_function "
	static inline blk_qc_t cas_submit_bio(int rw, struct bio *bio)
	{
		return submit_bio(rw, bio);
	}" ;;
    "4")
		add_function "
	static inline void cas_submit_bio(int rw, struct bio *bio)
	{
			submit_bio(rw, bio);
	}" ;;
    *)
        exit 1
    esac
}

conf_run $@
